By Dr Murat Uzam, Academic and Technical Author, Turkey

This series of columns is dedicated to a project involving thirteen analogue input modules and seven analogue output modules for a 5V microcontroller, connecting to its ADC and DAC channels.

This month we will focus on the third and forth analogue output modules, or analogue output modules 1 and 2 for a 0-5V to –5V – +5V signal converter. These provide voltages from –5V to +5V; module 2 requires three DC power supplies (+5V, –12V and +12V), and module 1 two DC power supplies (–12V and +12V).